The Dennis Case
After the Second World War it was decided to use the Alien Registration Act against the American Communist Party. On the morning of 20th July, 1948, Eugene Dennis, the general secretary of the American Communist Party, and eleven other party leaders, included William Z. Foster, Benjamin Davis, John Gates, Robert G. Thompson, Gus Hall, Benjamin Davis, Henry M. Winston, and Gil Green were arrested and charged under the Alien Registration Act. This law, passed by Congress in 1940, made it illegal for anyone in the United States "to advocate, abet, or teach the desirability of overthrowing the government".
The trial began on 17th January, 1949. As John Gates pointed out: "There were eleven defendants, the twelfth, Foster, having been severed from the case because of his serious, chronic heart ailment." The men were defended by George W. Crockett.
It was difficult for the prosecution to prove that the eleven men had broken the Alien Registration Act, as none of the defendants had ever openly called for violence or had been involved in accumulating weapons for a proposed revolution. The prosecution therefore relied on passages from the work of Karl Marx and other revolution figures from the past. When John Gates refused to answer a question implicating other people, he was sentenced by Judge Harold Medina to 30 days in jail. When Henry M. Winston and Gus Hall protested, they were also sent to prison.
The prosecution also used the testimony of former members of the American Communist Party to help show that Dennis and his fellow comrades had privately advocated the overthrow of the government. The most important witness against the leaders of the party was Louis Budenz, the former managing editor of the party's newspaper, The Daily Worker.
Another strategy of the prosecution was to ask the defendants questions about other party members. Unwilling to provide information on fellow comrades, they were put in prison and charged with contempt of court. The trial dragged on for eleven months and eventually, the judge, Harold Medina, who made no attempt to disguise his own feelings about the defendants, sent the party's lawyers to prison for contempt of court.
After a nine month trial the leaders of the American Communist Party were found guilty of violating the Alien Registration Act and sentenced to five years in prison and a $10,000 fine. Robert G. Thompson, because of his war record, received only three years. They appealed to the Supreme Court but on 4th June, 1951, the judges ruled, 6-2, that the conviction was legal.